[PATCH uqmi v1] uqmi: avoid gcc false error reporting (storing the address of local variable 'complete' in '*req.complete')

Peter Seiderer ps.report at gmx.net
Sun Mar 5 13:23:31 PST 2023


Avoid gcc false error reporting (req->complete is later reset to NULL
in case of use of local complete):

  dev.c:217:23: error: storing the address of local variable 'complete' in '*req.complete' [-Werror=dangling-pointer=]
    217 |         req->complete = &complete;
        |         ~~~~~~~~~~~~~~^~~~~~~~~~~

Signed-off-by: Peter Seiderer <ps.report at gmx.net>
---
 dev.c | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/dev.c b/dev.c
index bd10207..b8ac273 100644
--- a/dev.c
+++ b/dev.c
@@ -203,6 +203,15 @@ void qmi_request_cancel(struct qmi_dev *qmi, struct qmi_request *req)
 	__qmi_request_complete(qmi, req, NULL);
 }
 
+/* avoid gcc false error reporting:
+ *   dev.c:217:23: error: storing the address of local variable ‘complete’ in ‘*req.complete’ [-Werror=dangling-pointer=]
+ *     217 |         req->complete = &complete;
+ *         |         ~~~~~~~~~~~~~~^~~~~~~~~~~
+ */
+#if __GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 6)
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wdangling-pointer"
+#endif
 int qmi_request_wait(struct qmi_dev *qmi, struct qmi_request *req)
 {
 	bool complete = false;
@@ -231,6 +240,9 @@ int qmi_request_wait(struct qmi_dev *qmi, struct qmi_request *req)
 
 	return req->ret;
 }
+#if __GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 6)
+#pragma GCC diagnostic pop
+#endif
 
 struct qmi_connect_request {
 	struct qmi_request req;
-- 
2.39.2



More information about the openwrt-devel mailing list